package com.atguigu.eduservice.controller;


import com.atguigu.commonutils.R;
import com.atguigu.eduservice.entity.EduTeacher;
import com.atguigu.eduservice.entity.vo.TeacherQuery;
import com.atguigu.eduservice.service.EduTeacherService;
import com.atguigu.servicebase.exceptionhandler.GuliException;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author testjava
 * @since 2022-05-16
 */
@Api(description="讲师管理")
@RestController
@RequestMapping("/eduservice/teacher")
// @CrossOrigin
public class EduTeacherController {

    @Autowired
    private EduTeacherService teacherService;


    /**
     * 查询讲师表所有数据
     */
    @ApiOperation(value = "所有讲师列表")
    @GetMapping("findAll")
    public R findAllTeacher(){
        // 调用service实现查询所有的方法
        List<EduTeacher> list = teacherService.list(null);
        return R.ok().data("items", list);
    }

    /**
     * 逻辑删除讲师方法
     */
    @ApiOperation(value = "逻辑删除讲师")
    @DeleteMapping("{id}")
    public R removeeTeacher(
            @ApiParam(name = "id", value = "讲师ID", required = true)
            @PathVariable String id){
        boolean flag = teacherService.removeById(id);
        if (flag){
            return R.ok();
        }else {
            return R.error();
        }
    }

    @ApiOperation(value = "讲师分页查询")
    @GetMapping("pageTeacher/{current}/{limit}")
    public R pageListTeacher(@PathVariable long current,
                             @PathVariable long limit){

        Page<EduTeacher> pageTeacher = new Page<>(current,limit);

        teacherService.page(pageTeacher, null);
        long total = pageTeacher.getTotal();
        List<EduTeacher> records = pageTeacher.getRecords();
        return R.ok().data("total", total).data("rows", records);
    }

    @ApiOperation(value = "讲师分页条件查询")
    @PostMapping("pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current, @PathVariable long limit,
                                  @RequestBody(required = false) TeacherQuery teacherQuery){

        Page<EduTeacher> pageTeacher =  new Page<>(current, limit);

        QueryWrapper<EduTeacher> queryWrapper = new QueryWrapper<>();

        String name = teacherQuery.getName();
        Integer level = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();

        if (!StringUtils.isEmpty(name)) {
            queryWrapper.like("name", name);
        }

        if (!StringUtils.isEmpty(level) ) {
            queryWrapper.eq("level", level);
        }

        if (!StringUtils.isEmpty(begin)) {
            queryWrapper.ge("gmt_create", begin);
        }

        if (!StringUtils.isEmpty(end)) {
            queryWrapper.le("gmt_create", end);
        }

        queryWrapper.orderByDesc("gmt_create"); // 倒排
        teacherService.page(pageTeacher, queryWrapper);

        long total = pageTeacher.getTotal();
        List<EduTeacher> records = pageTeacher.getRecords();
        return R.ok().data("total", total).data("rows", records);
    }

    @ApiOperation(value = "添加讲师")
    @PostMapping("addTeacher")
    public R addTeacher(@RequestBody EduTeacher eduTeacher){
        boolean save = teacherService.save(eduTeacher);
        if (save){
            return R.ok();
        }else {
            return R.error();
        }
    }

    @ApiOperation(value = "讲师详情查询")
    @GetMapping("getTeacher/{id}")
    public R getTeacher(@PathVariable String id){
        EduTeacher eduTeacher = teacherService.getById(id);
//        try {
//            int i = 1/ 0;
//        }catch (Exception e){
//            throw new GuliException(20001, "执行了自定义异常..处理");
//        }
        return R.ok().data("teacher", eduTeacher);
    }

    @ApiOperation(value = "修改讲师信息")
    @PostMapping("updateTeacher")
    public R updateTeacher(@RequestBody EduTeacher eduTeacher){
        boolean flag = teacherService.updateById(eduTeacher);
        if (flag){
            return R.ok();
        }else {
            return R.error();
        }
    }
}

